{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How are unit tests conducted for blockchain programs?","a":"Write test cases: For the identified  testing scope, develop detailed test cases. Test cases should include functional verification under normal circumstances, as well as error handling in abnormal situations."}]}],"pr":"68dd01ca07f5b19b5b8c34bca4af887361df3e2119cd9418d3d90b14a8286a2d"}